Pump-valve.



J. E. HILL.

PUMP VALVE. APPLICATION TILED OUT. 5,1908.

Patented Apr. 13, 1909.

WZTNESSES;

INVEN'IOR. J05 5 1 Elfin- A TTORNEY.

UNITED IiUiENT UFFICE.

JOSEPH E. HILL, OF llENASilr-i. \i'lSCtJNSlN, ASSIGNOR OF TWO-THIRDS TO WILLIAM M. GILBERT AND THEODORE M. GILBERT, BOTH OF NEENAH, WISCDNSIN.

PUMP-VALVE Specification of Letters Patent.

Patented April 18, 1909.

Application filed October 5, 1908. Serial No. 456,164.

I T 0 all whom it may concern:

Be it known that l, Josnrn E. l l nai, a citizen of the United States, residing at Menasha, in the county of ll'inncbago and State of \Yisconsin, have invcntcd a new and useful Pump-Valve, of which the following a specification.

My invention relates to improvements in the ordinary valve which has a reciprocating movement upon a central, or axial bolt, and consists in making the parts oi the valve which come in contact with the valve seat, separate from the metallic skeleton of the valve, and of such form that its two rings which form its working face can be secured within the skeleton with a single ring plate and screws, the screws being so inserted that should they become loosened while the valve is in operation, they can be again made socure without removing the valve from its seat, and the obj cot-of my improvement is, to produce a valve the face ol which, or the part that engages with the valve seat while in operation, can he made of a material dilfering in its qualities from that of which the valve seat is composed, a variety living contemplated, such as hard rubber, connt-ri-sscd fiber, leather, and a softer metal than that of which the valve seat is made, they being -formed into rings that can be kept in stock,

and when required, can be easily and quickly secured within the valve skeleton, after the removal of the one then in use.

My invention is shown in the accompanying drawing, in which.----

l igure 1 is a plan view of the valve skclclon top. Fig. 2 is a plan view of thc inside, or working face of the valve. Fig. 3 is vertical section of the valve and its seat assembled into their working position. Fig. 4 is a plan view of the working taco of the valve scat. Fig. 5 is a plan of the inner and outer rings which form the working face of the valve. Fig. 6 is a transverse scctimi showing one modification of one of the valvc rings. Fig. 7 is a vertical section across one oi the valve rings showing another, and the preferred modification for said rings.

Similar numerals and letters indicate like parts in the several views.

1, indicates the valve skeleton, which is preferably, circular, may be cast, drop forged, or otherwise formed of a suitablc meta], brass, being! ada )ted for most purposes. A large body of metal gathered around its central bore 2, for the purpose of forming a valve that will not buckle, when in operation. Upon the lower side of the skeleton, a wide groove 3, is formed between the outer wall 4 and hub 5, its inclosing walls being arranged parallel with the axial line of the bolt upon which the valve reciprocates. Fitted closely around the hub 5 is a ring ('3, and within the outer wall 1 is fitted a ring 7, both being trapezoidal in form in cross section, as shown in Fig. (3, and at the left half of the valve in Fig. 3, or preferably, having a lip as shown by (5 in Fig. .l or 7, in Figs. 3 and 7, which lips are formed by a continuation of their shortest parallel side lines for the purpose of making the valve to cover more of, and substantially the wholc surface of the valve seat. These lips arc omitted in Fig. 2 for the better showing of the walls of the groove in which the rings are held. The ring 6 is provided with a beveled outer edge is, and the ring 7 with a beveled inner edge 7 said beveled edges boingl'or the purpose oi assisting in securing the rings to the valve skeleton 1. A ring 8, of suitable diameter and thickness of a suitable metal, having its edges beveled to correspond with the beveled edges of the rings 6 and 7, is titted to be secured within said groove with screws 9, and to engage with its beveled edges those of the rings 6 and 7, and when its screws are tightened, to press the larger ring outward and the smaller ring inward toward their inclosing walls, and to clamp the rings securely within the groove. It will be observed that these screws are insertedfrom I the outside of the skeleton l, and are tapped into the ring 8, whereby any necessary t1ght ening can be performed, without taking the valve apart.

The skeleton is arranged for a reciprocating movement upon the bolt 10, the bolt being provided with a large head 11, and its lower end threaded into the central bore 12 of the valve seat 13. The top of the skeleton 1, and under side of the bolt head 1 1, are provided with a groove 14 in each, in which the coiled spring 15, is seated for normally holding the valve pressed downward upon its seat. The valve seat is provided with a hub 16, outer rim 17, which is providcd with threads 18 for its connection with the valve deck, and with grids 19, between which grids are openings 20, for the passage through them of the liquid to be pumped.

groove Within its outer wall and the smaller ring within its inner Wall, and a lip integral With the ring,

Having described my invention, what I I l extending over i I claim and desire to secure by Letters Patent, is,-

A ump valve, consisting of a circular meta icskeleton, a groove in the Working face of the skeleton having its inner and outer inclosing walls arranged parallel with the reciprocating movement of the valve, two rings of a different material or quality from that of which the valve seat is formed, a cross section of each ring being inclosed by a plurality of straight lines, one ring having a larger in and outside diameter than the other, the larger one having a beveled inner edge and the smaller one a beveled outer edge, the larger ring being held Within said the outer wall of said groove, and one upon over its inner wall, and a metallic ring having its outer and inner edges beveled to lit the bevel of said ring edges, and. fitted to be secured in said groove between said two rings With screws, and to engage the beveled edges of said two rings and hold them in position within the groove.

' JOSEPH it. 11111.. Witnesses:

SILAS BULLARD, W'ILLIAM A. JoNEs.

one upon the larger ringfor the smaller ring for extending 

